Title:
BAG WITH VALVE
Document Type and Number:
Japanese Patent JPS6023150
Kind Code:
A
Abstract:
A valved bag consists of a collapsed section of a tubular plastic film, which has been formed in that the side portions of a plastic film web have been infolded to overlap each other and which has been provided with transverse top and bottom seam welds and in the overlap area of the side portions has been provided with two spaced apart parallel longitudinal seams, which join only said side portions and terminate or are interrupted at a distance from the top seam weld so as to provide a filling passage. In order to simplify the manufacture of the valved bags, the longitudinal seams consist of strips of adhesive and are in contact with both side portions of the film web at both edges of the overlap area. One of said side portions is provided with an adhesive bond-inhibiting agent adjacent to the filling passage at least across the strip of adhesive.
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Inventors:
FURITSUTSU ATSUHERUPOORU
Application Number:
JP13282084A
Publication Date:
February 05, 1985
Filing Date:
June 27, 1984
Export Citation:
Assignee:
WINDMOELLER & HOELSCHER
International Classes:
B65D30/24; G11B15/093; (IPC1-7): B65D30/24
Domestic Patent References:
| JPS532104A | 1978-01-10 | |||
| JPS4958977A | 1974-06-07 | |||
| JPS5467111U | 1979-05-12 | |||
| JPS4732986A | ||||
| JPS489866U | 1973-02-03 |
Attorney, Agent or Firm:
Minoru Nakamura
Previous Patent: A manufacturing method and a manufacture device of a foaming fabrication object
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